Journal Title
Title of Journal: Fish Sci
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Abbravation: Fisheries Science
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Authors: Takashi Kitagawa Takashi Nakagawa Ryuji Kimura Hiroshi Niino Shingo Kimura
Publish Date: 2011/01/25
Volume: 77, Issue: 2, Pages: 217-222
Abstract
Arabesque greenling Pleurogrammus azonus form schools of 30000–60000 individuals to feed on mesozooplankton near the sea surface The fish need to be close to the surface where mesozooplankton production occurs but the food is not sufficiently dense there for the fish to grow optimally while avoiding predation by sea birds Arabesque greenling use a unique method to optimize their feeding conditions while avoiding staying on the sea surface When the school swims upward water is pushed downward Upward swimming of a school of 30000 individuals generates a downward stream of about 08–11 m/s resulting in a convergent flow near the surface This convergence concentrates the mesozooplankton on the sea surface and transports them into deeper layers with a strong vortex about 30 m in diameter and 10–20 m long Thus schooling of this fish induces vortex flows that provide a rich feeding environmentThe authors thank Ms Masako Nishijima and the crew members of NHK Japan Broadcasting Corporation for providing the photos presented in this article We also acknowledge Dr Tadamichi Morisaka for providing useful information and references and Dr Hiroyuki Matsuura for advice on zooplankton identification
Keywords:
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Other Papers In This Journal:
- Pinger affects fish catch efficiency and damage to bottom gill nets related to bottlenose dolphins
- Development of the musculature and muscular abnormalities in larval seven-band grouper Epinephelus septemfasciatus
- Maturation process and reproductive biology of female Arabesque greenling Pleurogrammus azonus in the Sea of Japan, off the west coast of Hokkaido
- Effects of hypoxia on the feeding intensity and somatic condition of the blackfin flounder Glyptocephalus stelleri in Funka Bay, Japan
- Evaluation of the pigmentation stages and body proportions from the glass eel to yellow eel in Anguilla japonica
- Ecosystem structure and trophic dynamics of an exploited ecosystem of Bay of Bengal, Sundarban Estuary, India
- Potential use of corn co-products in fishmeal-free diets for juvenile Nile tilapia Oreochromis niloticus
- Isolation and characterization of 16 polymorphic microsatellite markers from Nibea albiflora
- The current propagation systems and physiological studies of Japanese chum salmon
- Molecular cytogenetic study of genome ploidy in the German mirror carp Cyprinus carpio
- Physiological response of the eye to different colored light-emitting diodes in Japanese flying squid Todarodes pacificus
- Growth, nutrient utilization, oxidative condition, and element composition of juvenile red sea bream Pagrus major fed with fermented soybean meal and scallop by-product blend as fishmeal replacement
- Cloning and nutritional regulation of polyunsaturated fatty acid desaturase and elongase of a marine teleost, the nibe croaker Nibea mitsukurii
- Production and characterization of monoclonal antibodies to leukocytes and serum immunoglobulin in Japanese flounder Paralichthys olivaceus
- Interregional differences in mortality of aquacultured yellowtail Seriola quinqueradiata in relation to a Chattonella bloom in the Yatsushiro Sea, Japan, in 2010
- Understanding the accumulation features of POPs in squid from the offshore waters of southeast Korea
- The effect of lunar cycle, tidal condition and wind direction on the catches and profitability of Japanese common squid Todarodes pacificus jigging and trap-net fishing
- Lipid characteristics of coastal migratory Sarda orientalis tissues
- Reproductive cycle of the venerid clam Meretrix lusoria in Ariake Sound and Tokyo Bay, Japan
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